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In order to obtain the properties of anti-icing on the blowing rotating spinner, this paper analyzes the anti-icing principles and effects of the blowing rotating spinner in three aspects of air flow, impaction of water droplets and icing properties, using three-dimensional numerical simulation technology. Meanwhile, the experimental research is carried out using icing wind tunnel. The anti-icing conditions are analyzed from both of the icing thickness and range on the spinner surface, and the anti-icing effects of the blowing rotating spinner are validated in the icing environment. Above analysis shows that the anti-icing structure of the blowing rotating spinner has an excellent effect on anti-icing. [ABSTRACT FROM AUTHOR]

Icing on the rotary cone surface of an aircraft engine may cause flight safety problem. Some works including the drops impingement characteristics of rotary cone based on Eulerian two-phase flow theory，presenting of the surface convective heat transfer calculation method of rotating part and the development of electro-thermal anti-icing calculating program based on improved Messinger freezing model were presented in this paper. Based on those researches，several benchmark examples were tested to verify the methods, to research the antiicing transient process and predict the performance of periodic electric-heating anti-icing system. The results showed that the rotation of the rotary cone could enhance convective heat transfer, the surface temperature was lower with greater revolving speed under the same heating power. During Anti-icing system startup stage，icing and ice shedding phenomenon happened，and the response time of the system with freezing was reduced. Using the same electric heating power, the energy efficient of periodic electrical heating anti-icing process was higher, while with the same electric heating energy consumption, the response speed of periodic electric heating antiicing system was faster, however it faced more risks of freeze. [ABSTRACT FROM AUTHOR]